I have a late 2013 iMac 27, running 10.12.6 OS.

I had an idea.

At present, I cannot run a 4k monitor on my late 2013 iMac.

I plan on getting the next Mac mini to come out, hopefully next month, but maybe next year.

In the meantime, is it possible, just grasping here: I get a 4k monitor, but set the display to 2560 x 1440?

A) Would that work, and B), if it did work, would it ruin the monitor?

Thanks.

Many thanks. Previously, I had a 32 inch Samsung, 2560 x 1440.

My next monitor will also be 32 inch, probably LG.

I mention this because I don't know if a 32 is harder to push than a 27. Although logic tells me that pixel count would be the same.

Oh, I've watched about 10 hours of videos on USB-C, HDMI and Display port connections.

My next monitor will probably not have USB-C. So, for my purposes would HDMI or Display port be better?

I presume I could get a USB-C to Display port connector.

Or would simple HDMI to HDMI be simplest and best?

Also, I don't do gaming, just make books on Indesign, and short instruction videos. So, a fast 'refreshing rate' or whatever, I think is not important to me. Thanks a lot.

Thanks. I asked because I found something that appeared (if I understood correctly) to say that it was possible. See attached.

Thanks. I presume 30 is not as good as 60?

You're saying it if I set the monitor to 30, it might work, but I the picture would be sub par?

Just a non-starter all the way around?